fkie_nvd - fkie_cve-2023-6935

FKIE_CVE-2023-6935

Vulnerability from fkie_nvd - Published: 2024-02-09 23:15 - Updated: 2024-11-21 08:44

Severity ?

5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
5.9 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing Bleichenbacher style attack, when built with the following options to configure: --enable-all CFLAGS="-DWOLFSSL_STATIC_RSA" The define “WOLFSSL_STATIC_RSA” enables static RSA cipher suites, which is not recommended, and has been disabled by default since wolfSSL 3.6.6. Therefore the default build since 3.6.6, even with "--enable-all", is not vulnerable to the Marvin Attack. The vulnerability is specific to static RSA cipher suites, and expected to be padding-independent. The vulnerability allows an attacker to decrypt ciphertexts and forge signatures after probing with a large number of test observations. However the server’s private key is not exposed.

References

URL	Tags
facts@wolfssl.com	https://people.redhat.com/~hkario/marvin/	Technical Description
facts@wolfssl.com	https://www.wolfssl.com/docs/security-vulnerabilities/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://people.redhat.com/~hkario/marvin/	Technical Description
af854a3a-2127-422b-91ae-364da2661108	https://www.wolfssl.com/docs/security-vulnerabilities/	Vendor Advisory

Impacted products

	Vendor	Product	Version
	wolfssl	wolfssl	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*",
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    },
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      "lang": "es",
      "value": "wolfSSL SP Math Toda la implementaci\u00f3n de RSA es vulnerable al ataque Marvin, una nueva variaci\u00f3n de un ataque de sincronizaci\u00f3n de estilo Bleichenbacher, cuando se construye con las siguientes opciones para configurar: --enable-all CFLAGS=\"-DWOLFSSL_STATIC_RSA\" La definici\u00f3n \"WOLFSSL_STATIC_RSA\" habilita RSA est\u00e1tico conjuntos de cifrado, que no se recomienda y ha estado deshabilitado de forma predeterminada desde wolfSSL 3.6.6. Por lo tanto, la compilaci\u00f3n predeterminada desde 3.6.6, incluso con \"--enable-all\", no es vulnerable al ataque Marvin. La vulnerabilidad es espec\u00edfica de los conjuntos de cifrado RSA est\u00e1ticos y se espera que sea independiente del relleno. La vulnerabilidad permite a un atacante descifrar textos cifrados y falsificar firmas despu\u00e9s de realizar una gran cantidad de observaciones de prueba. Sin embargo, la clave privada del servidor no est\u00e1 expuesta."
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  "id": "CVE-2023-6935",
  "lastModified": "2024-11-21T08:44:52.217",
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          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
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  "sourceIdentifier": "facts@wolfssl.com",
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}

CVE-2023-6935 (GCVE-0-2023-6935)

Vulnerability from cvelistv5 – Published: 2024-02-09 22:25 – Updated: 2024-08-02 08:42

Summary

Severity ?

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-203 - Observable Discrepancy

Assigner

wolfSSL

References

URL

Tags

	https://people.redhat.com/~hkario/marvin/	technical-descriptionthird-party-advisory
	https://www.wolfssl.com/docs/security-vulnerabilities/

Impacted products

	Vendor	Product	Version
	wolfSSL	wolfSSL	Affected: 3.12.2 , ≤ 5.6.4 (release bundle)

Credits

Hubert Kario tlsfuzzer

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2023-6935

CVE-2023-6935 (GCVE-0-2023-6935)

Tags

Sightings

Nomenclature